Symons's Monthly Meteorological Magazine, September.—The first daily weather map, sold in the Great Exhibition of 1851. Mr. Symons publishes a reduced copy of a series of such maps issued daily from August 8 to October 11, 1851, Sundays excepted, indicating the conditions of the atmosphere in several parts of Great Britain at 9,h. a.m. Twelve years later, in September 1863, M. Le Verrier issued his weather maps from the Paris Observatory, which are now continued in an extended form by the Paris Meteorological Office.—Dry periods. On August 1, Mr. Symons wrote to the Times, pointing out that at Camden Square, London, the rainfall of the first seven months of this year (8˙27 inches) is only 60 per cent, of the average for the thirty-seven years 1859–95; during the ten years 1887–96 the average for the same period was only 11˙65 inches, while for the twenty eight years 1859–86 it was 14˙24 inches. Commenting on this, Mr. J. M. Fraser, of Lochmaddy, Hebrides, states that the average rainfall for the first eight months of the twelve years 1884–95 is 27˙78 inches, and the average for the same period in 1890–95 was 30˙11 inches, while this year the total for the first eight months is 34˙86 inches. It is noteworthy that the deficiency in the south of England should be made up by a heavy yearh increase in the opposite extreme of the kingdom.